According to the Philippine Historical Committee plaque, a photo of which you can see in Flickr, the construction of Paoay Church was started in 1704 and inaugurated in 1896. This information is weird because according to an article on this page, the church was started in 1694 and finished in 1710. The bell tower, which you can see to the northwest of the main church building in Google Maps, has been used as a watchtower by Filipinos during the Philippine Revolution and WWII.

Paoay Church is a fine example of Baroque architecture with Oriental influences. It has also been called an earthquake Baroque church because of the presence of 24 massive curved buttresses (quite visible in the satellite image) supporting the 1.67-meter thick walls. Despite this, the church sustained some earthquake damage in 1706 and 1927, most probably to the interior architecture.